Foundations of Data Mining: Quiz 2
Student’s Name
Course Title
Professor
Date
, FOUNDATIONS OF DATA MINING: QUIZ 2 2
EXERCISE 1: [20 POINTS]
1. Compute the minimum number of clusters for an expert who needs to explain at
least 80% of the variation capture and explained by the kMeans clustering
machinery?
The minimum number of clusters needed to explain at least 80% of the variation in the
data would be 6
2. Construct a sketch of the scree plot of percentage of variation explained by this
kMeans clustering machinery.
Figure 1:
Scree plot of percentage of variation
Student’s Name
Course Title
Professor
Date
, FOUNDATIONS OF DATA MINING: QUIZ 2 2
EXERCISE 1: [20 POINTS]
1. Compute the minimum number of clusters for an expert who needs to explain at
least 80% of the variation capture and explained by the kMeans clustering
machinery?
The minimum number of clusters needed to explain at least 80% of the variation in the
data would be 6
2. Construct a sketch of the scree plot of percentage of variation explained by this
kMeans clustering machinery.
Figure 1:
Scree plot of percentage of variation
